If you lose one sense other senses increase in their ‘sensitivity’, with blind people this is usually touch and sound, I assume one would be able to feel someone else, the heartbeat, facial features etc. A lot of the best intimacy I’ve had in my life is in dim lit or dark rooms and I’m pretty sure others would feel the same, I doubt anyone is fucking In movie lighting so the thought of not being able to see someone I’m being intimate with doesn’t seem like it would impede the moment.
However I do believe that someone who could not feel (can’t feel touch) would not be able to love as well as someone who can.